05696962 is referenced by 433 patents and cites 12 patents.

A computerized method for retrieving documents from a text corpus in response to a user-supplied natural language input string, e.g., a question. An input string is accepted and analyzed to detect phrases therein. A series of queries based on the detected phrases is automatically constructed through a sequence of successive broadening and narrowing operations designed to generate an optimal query or queries. The queries of the series are executed to retrieve documents, which are then ranked and made available for output to the user, a storage device, or further processing. In another aspect the method is implemented in the context of a larger two-phase method, of which the first phase comprises the method of the invention and the second phase of the method comprises answer extraction.

Title
Method for computerized information retrieval using shallow linguistic analysis
Application Number
85446
Publication Number
5696962
Application Date
May 8, 1996
Publication Date
December 9, 1997
Inventor
Julian M Kupiec
Cupertino
CA, US
Agent
Alexander E Silverman
Assignee
Xerox Corporation
CT, US
IPC
G06F 15/40
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